Finding the Fourth Proportional to 3,810,805.64, 5,258,775.71 and 2,156,917.26
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Solution
The fourth proportional to 3,810,805.64, 5,258,775.71 and 2,156,917.26 is: 2,976,468.80
Step by Step Solution
- Step 1: Write the proportion equation
3,810,805.64 : 5,258,775.71 = 2,156,917.26 : x - Step 2: Convert to fraction form
3,810,805.64/5,258,775.71 = 2,156,917.26/x - Step 3: Cross multiply
3,810,805.64x = 5,258,775.71 × 2,156,917.26 - Step 4: Simplify right side
3,810,805.64x = 11,342,744,095,367.75 - Step 5: Solve for x
x = 11,342,744,095,367.75/3,810,805.64 - Step 6: Final answer
x = 2,976,468.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.